v3.25.2
Document and Entity Information
Jun. 15, 2025
Cover [Abstract]  
Entity Registrant Name PROTHENA CORP PUBLIC LTD CO
Amendment Flag false
Entity Central Index Key 0001559053
Document Type 8-K
Document Period End Date Jun. 15, 2025
Entity Incorporation State Country Code L2
Entity File Number 001-35676
Entity Tax Identification Number 98-1111119
Entity Address, Address Line One 77 Sir John Rogerson’s Quay
Entity Address, Address Line Two Block C
Entity Address, Address Line Three Grand Canal Docklands
Entity Address, City or Town Dublin 2
Entity Address, Postal Zip Code D02 VK60
Entity Address, Country IE
City Area Code 011-353-1
Local Phone Number 236-2500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Ordinary Shares, par value $0.01 per share
Trading Symbol PRTA
Security Exchange Name NASDAQ
Entity Emerging Growth Company false